I'm around the lake a little from your location and no I've not been able to pick up 67.1 - 67.4 but I am getting exactly the same lineup of channels you have with the same outdoor equipment. What is your current antenna height ?. Also you are likely set at about 135 degrees to catch the stations you are picking up and 67.1 would require you to be able to catch them around 150 degrees from magnetic north.